Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f96526354bb0824f3ce550a028606d2f94435b92
Commit: f96526354bb0824f3ce550a028606d2f94435b92
Parent: 9aea8cbf2866c5680e30ff473341b7c5e93f7442
Author: Geert Uytterhoeven <[EMAIL PROTECTED]>
AuthorDate: Sat Jul 21 04:37:48 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sat Jul 21 17:49:16 2007 -0700
ps3: FLASH ROM Storage Driver
Add a FLASH ROM Storage Driver for the PS3:
- Implemented as a misc character device driver
- Uses a fixed 256 KiB buffer allocated from boot memory as the hypervisor
requires the writing of aligned 256 KiB blocks
Cc: Geoff Levand <[EMAIL PROTECTED]>
Signed-off-by: Geert Uytterhoeven <[EMAIL PROTECTED]>
Cc: Jens Axboe <[EMAIL PROTECTED]>
Cc: James Bottomley <[EMAIL PROTECTED]>
Cc: Paul Mackerras <[EMAIL PROTECTED]>
Cc: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/powerpc/platforms/ps3/Kconfig | 15 ++
drivers/char/Makefile |2 +
drivers/char/ps3flash.c| 440
3 files changed, 457 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/ps3/Kconfig
b/arch/powerpc/platforms/ps3/Kconfig
index f609291..d4fc74f 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -123,4 +123,19 @@ config PS3_ROM
In general, all users will say Y or M.
Also make sure to say Y or M to "SCSI CDROM support" later.
+config PS3_FLASH
+ tristate "PS3 FLASH ROM Storage Driver"
+ depends on PPC_PS3
+ select PS3_STORAGE
+ help
+ Include support for the PS3 FLASH ROM Storage.
+
+ This support is required to access the PS3 FLASH ROM, which
+ contains the boot loader and some boot options.
+ In general, all users will say Y or M.
+
+ As this driver needs a fixed buffer of 256 KiB of memory, it can
+ be disabled on the kernel command line using "ps3flash=off", to
+ not allocate this fixed buffer.
+
endmenu
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 4e6f387..8fecaf4 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -107,6 +107,8 @@ obj-$(CONFIG_IPMI_HANDLER) += ipmi/
obj-$(CONFIG_HANGCHECK_TIMER) += hangcheck-timer.o
obj-$(CONFIG_TCG_TPM) += tpm/
+obj-$(CONFIG_PS3_FLASH)+= ps3flash.o
+
# Files generated that shall be removed upon make clean
clean-files := consolemap_deftbl.c defkeymap.c
diff --git a/drivers/char/ps3flash.c b/drivers/char/ps3flash.c
new file mode 100644
index 000..79b6f46
--- /dev/null
+++ b/drivers/char/ps3flash.c
@@ -0,0 +1,440 @@
+/*
+ * PS3 FLASH ROM Storage Driver
+ *
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * Copyright 2007 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include
+#include
+#include
+
+#include
+#include
+
+
+#define DEVICE_NAME"ps3flash"
+
+#define FLASH_BLOCK_SIZE (256*1024)
+
+
+struct ps3flash_private {
+ struct mutex mutex; /* Bounce buffer mutex */
+};
+
+static struct ps3_storage_device *ps3flash_dev;
+
+static ssize_t ps3flash_read_write_sectors(struct ps3_storage_device *dev,
+ u64 lpar, u64 start_sector,
+ u64 sectors, int write)
+{
+ u64 res = ps3stor_read_write_sectors(dev, lpar, start_sector, sectors,
+write);
+ if (res) {
+ dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%lx\n", __func__,
+ __LINE__, write ? "write" : "read", res);
+ return -EIO;
+ }
+ return sectors;
+}
+
+static ssize_t ps3flash_read_sectors(struct ps3_storage_device *dev,
+u64 start_sector, u64 sectors,
+unsigned int sector_offset)
+{
+ u64 max_sectors, lpar;
+
+ max_sectors = dev-&g
